William streeter



`I5 side. Fig. 4 is a plan, and Fig. 5 a cross-sec- PATENT OFFICE.

WILLIAM srEEErER, E EocHEsrEn,

NEW YORK, ASSIGNOR TO SARGENI & GREENLEAF, OF SAME PLACE.

PERMUTATioN-LOCK.

SPECIFICATION forming part of Letters Patent No. 269,136, dated December 12, 1882.

Application led August 22,1882. (Model.)

To all whom it may concern.-

Be it known that I,WILLIAM STREETER, of Rochester, Monroe county, New York, have invented a certain new and useful Improvement in Locks; and I do hereby declare that the following is a full, clear, and lexact description ot' the same, reference being had to Vthe accompanying drawings, in ywhich- Figure l is a horizontal section through the 1o lock, and thedoor to which it is attached, in the line of the spindle. Fig. 2 is an elevation of the lock looking from the rear and showing the same on -an enlarged scale. Fig. 3 is an elevation of the dial looking from the inner tion, ot' one of the tumblers on an enlarged scale. Fig. 6 is a perspective view of one of the ilies.

My improvement relates to combinationlocks, and is of` that kind where a sleeve runs through the door and receives the spindle, and in which the lock is attached or clamped to the door by meansrof the sleeve and connecting parts without using screws for screwing the lock to the door, as formerly practiced.

The invention consists, first, in combining VWith a sleeve having a solid dial-ringwhich rests against the outside of the door, a lock having leveling-screws which bear against the 3o inner side of thev door, by which means the parts may be broughtin rmcontact with and clamped to the door, and beat the same time leveled and evened to produce a iirm bearin g. `It also consists in the construction of the tubular sleeve and" dial made in one piece or rigidly secured together, with a disk on the inner face of the dial which bears against the door, and a screw-thread on the inner end ot' :the sleeve which screws directly into the lockcase, thereby avoiding the attachments ordinarily employed at the inner end for attach-ing the sleeve to the lock, and also avoiding screwthreads or other connections at the outer end Where the sleeve attaches to the dial. t 4 5 It furthermore consists in the peculiar construction ot the iiy, having a right-angled lug or tang which enters a corresponding slot in the center-piece of the tumbler in line with the driving-pin of the next tumbler, all asV 5o hereinafter described.

In the drawings, A shows the door to which the lock is attached, a being the utside plate and a the inside plate.

B is the lock, being in itself of ordinary construction. 5 5

C C are the tumblers.

D is the spindle.

E is the dial, and E is the the lock is operated.

G is a hollow tubular sleeve which extends 6o through thedoor and holds the spindle. At itsinner end it has a screw-thread, l), which screws into the back plate ot' the lock and is the only connection by which the lock is held to the door. At th'e Outer end the dial-ring 65 H formsa solid attachment to the sleeve, beingl either made integral with it or rigidly attached by rivets, screws, or other means.

c is a disk forming a shoulder at the end ot' the sleeve, this disk abutting against the outer 7o plate and resting flush with the outer edges of the dial-ring H. By this means a solid head is made, which rests against the outer plate of the door, andthe sleeve has simply to be inserted through the door and be drawn up on the inside to secure it in place, dii-'ering in this respect from those devices where a screwthread is cut on the outer end of the sleeve and a nut screwed thereon outside ofthe door,

By this means, also, a iiange or head. is avoided ho on'the inner end ot' the sleeve for the attachment o t' the lock and the use ot'small screws for attaching the lock to the flange is avoided, thus knob' by which stren gthenin g the connection and avoidingdfiiculty in drawing thelock up to place against the inside of the door.

I l I l are four leveling-screws-one in each corner of the lock-screwingthrough the back` plate ofthe lock and resting against the back plate of the door, as shown in Fig. l. These 9o screws are slotted at their inner ends, so that they can be driven by a screw-driver;` or they, may be provided with square heads to be driven by a wrench. Byturning these screws up more less the sleeve isdrawn up in thedoor, bringing the solid disk o and the edges of the dial-ringl against the outside of the door, while the lock itselt'is firmly stift'ened and fastened :against the inside of the door by the pressure of the screws. The lock. is keyed upon the end of 10o the sleeve, as shown at d, Fig. 2,and when in place more or less of slackness is left bev forced up to place.

tween the lock and the door. The screws take l up this slackness and tighten the parts when Another important advantage of the screws consists in their ability to level or adapt thelock on one side and the disk and dial-ring on the other side to the surfaces against which they rest.

It' there is any unevennessor failure of any part of the lock or dial-ring to form a bearing the difficulty is remedied by turning up any one of the screws more than the others to take up the` slack, thus forming a true and solid bearing throughout.

One or more of the levelingscrews I has a projecting point, f, which rests in a socketg, bored in the back plate of the door, as shown in Fig. l. This prevents the lock frombeing turned around out ot' position.

Each of the tumblers G consists of an outer rim and a center-piece, as usual.

K is a fly, which rests and turns freely on the stud h upon which the tumblers rest. The fly consists of a thin ring, having a pro- `iecting tongue, t', against which the drivingpin of the next tumbler strikes, its object being` to allow the pin a full rotation to set the gatings ot' the tumblers. This fly is in -common use and well known. The tongue, as it is operated bythe driving-pin, strikes stops on opposite sides, which. limit its mot-ion. Heretofor'e the stops have been either inside or outside of the track of the driving-pin in the groove l, which is objectionable, as it causes cramping on the iiy itself, which is a thin ring and liable to bind upon the stud on which it turns, and when force is applied is liable to break the tongue. To obviate these difficulties I construct the tongue i with a right-angled lug, @,Fig. 6, and cut a slot, m, through the center-piece ct' the tumbler, in which slot the lug rests and tnrns, the ends ot' the slot forming the stops to the tongue. 'lhe slot is cut through the tumbler coincident with the groove l, and therefore the lug lies directly in the path oi' the driving-pin and not outside or inside of it, and by this means the action of the driving-pin is direct, and all strain and tendency to springing or cramping is avoided and much greater strength is secured.

The driving-pin p is attached to the center piece of the tumbler diametrically opposite to the tonguei and on the reverse face, as shown in Fig. 5. When the tumblers are turned the bearings of the several driving-pins against the tongues alternate or come on opposite sides.

Heretofore, so far as I am aware, in all locks.

Where a fly is used the driving-pin is on the back ofthe center-piece in line with andcoincident with the tiy. In such case, when the tumblers are turned, the engagement of the driving-pins with the flies is all on one side and in line, which causes strain and makes the tumblers bindon the stud on which they turn. By locating the driving-pins diametrically opposite the iiies, as in this invention, when the wheels are turned the driving-pins alternate in their engagement withthe flies, thus balancing the strain and obviating binding of the wheels on the stud.

Havingdescribed myinvention, what I claim as new, and desire to secure by Letters Pat-v 1. The combinationv of the tubular sleeve having the dial-ring attached fast at its outer end and provided with a screw-thread at its inner end, the lock-case attached to the inner end of the sleeve, and the leveling-screws in the back plate ot' the lock-case bearing against the inner face of the door for tightening and leveling the lock and dial against the door, as herein shown and described.

2. In a. combination-lock, the tubular spindle G, constructed with a disk, c, at its outer end resting iiush with the outer edges of the` dial-ring, a dial-ring formed solid with the sleeve and with a screw-thread on the inner end of the sleeve for connecting with the lock, as herein shown and described.

3. The y K, provided with the tongue t' and offset-lug t', in combination with the centerpiece ofthe tumbler provided with the slot m, the slot lying in the groove l, and the lug eX- tending through the slot directly in the track of the drivingpin ot' the next tumbler, as shown and described, and for the purpose specified.

4. In combination with the iiy K, provided with the tongue i and oiiset-lug i', the driving-pin p, attached to the center-piece of the tumbler diametrically opposite the tongue and on the reverse side of the tumbler, as herein shown and described.

In witness whereof I have hereunto signed my naine in the presence ot' two subscribing witnesses.

VILLIAM STREETER. l

V'Vitnesses R. F. OsG-oon, J AcoB SPAHN.

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